EP2614849A1 - Unité de dispersion - Google Patents
Unité de dispersion Download PDFInfo
- Publication number
- EP2614849A1 EP2614849A1 EP13158374.2A EP13158374A EP2614849A1 EP 2614849 A1 EP2614849 A1 EP 2614849A1 EP 13158374 A EP13158374 A EP 13158374A EP 2614849 A1 EP2614849 A1 EP 2614849A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- outlet
- axial
- dispersion unit
- unit according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0086—Inhalation chambers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/001—Particle size control
- A61M11/002—Particle size control by flow deviation causing inertial separation of transported particles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/0001—Details of inhalators; Constructional features thereof
- A61M15/0021—Mouthpieces therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2206/00—Characteristics of a physical parameter; associated device therefor
- A61M2206/10—Flow characteristics
- A61M2206/16—Rotating swirling helical flow, e.g. by tangential inflows
Definitions
- the present invention relates to a dispersion unit for a powder inhaler.
- Such dispersing units are basically known and serve to produce a dispersion of an aerosol, the aerosol consisting of a mixture of active ingredient and carrier, e.g. Lactose exists.
- the carrier serves primarily to enhance the physical properties of the formulation, e.g. to control their flowability.
- the fine active ingredient mainly adheres to the surface of the coarse carrier substance.
- the adhesion forces between carrier and active substance particles or between active ingredient particle agglomerates must be overcome during inhalation in order to generate a high proportion of respirable active ingredient particles.
- the energy required for this purpose can be introduced in a dispersion unit.
- Impact forces or turbulence or a combination of both are used for dispersion in known dispersing units. It is also known to produce a dispersion with the help of baffles and additional supply air channels.
- annular channel for supplying a particle flow.
- the annular channel has an axial inlet and an axial outlet in order to supply the particle stream consisting of a mixture of active substance and carrier substance.
- annular deflection chamber adjoins the axial outlet of the annular channel, in which the axially entering particle flow is deflected in a predominantly radial flow direction.
- an acceleration of the particle flow can be achieved in this deflection chamber, so that the particle flow circulates in a circular manner in a direction adjacent to the deflection chamber in the axial direction of the rotary chamber having a circular peripheral wall and an axial outlet.
- the deflection chamber and the rotation chamber are not used for separating coarse particles, but instead a distribution which differs in the average residence time exploited between coarse and fine particles. Until the end of the inhalation process so coarser particles can leave the rotation chamber, so that no significant powder residues remain, which could worsen the operability of the inhaler or the uniformity of the dose output when applying further doses.
- the annular channel according to the invention has an axially oriented inlet and outlet.
- the particle flow introduced into the annular channel can nevertheless also have tangential flow components.
- guide vanes may be arranged in the deflection chamber, which are oriented obliquely to the axial direction.
- the particle flow entering axially via an annular space can be deflected in a simple manner into a tangential flow, wherein at the same time an acceleration of the particle flow in the deflection chamber can be effected by the design of the deflection vanes.
- the guide vanes are curved in order to achieve the desired deflection and acceleration effect. It may be advantageous if the curvature of the guide vanes decreases in the axial direction. In this way, the guide vane can be designed in the manner of a turbine blade in order to achieve the best possible deflection and acceleration. In this context, it may also be advantageous if the vanes have in section the profile of a wing with a curved skeleton line. Also it can be in this Connection be advantageous if the guide vanes in the region of the inlet of the deflection chamber have a rounded front edge and in the region of the outlet of the deflection chamber a less rounded back edge. Test tests have shown that such a profile design can achieve very good results.
- the axial outlet of the rotary chamber is arranged centrically. As a result, light particles leave the rotation chamber through the outlet early, whereas heavier particles circulate along the peripheral wall of the rotation chamber.
- a discharge channel adjoins the axial outlet of the rotation chamber, which widens.
- the extension may be concave, thereby causing the aerosol particles exiting the outlet of the rotary chamber with relatively high velocity components across the inhalation direction to be slowed down in the region of the discharge channel, with the movement of the aerosol in the outlet channel being predominantly oriented longitudinally.
- the cross-sectional elevation of the discharge channel achieves a slower aerosol exit so that the patient inhales a non-ballistic aerosol.
- the discharge channel has a circular-cylindrical region in an output-side end section, since this can bring about axial bundling of the discharged particle flow.
- a concave design of the discharge channel and a convex design is conceivable.
- the deposition of light particles from the rotation chamber can be additionally improved by the fact that the discharge channel sharp-edged, and in particular connects with an acute-angled cross-section edge to the rotation chamber.
- no air inlet openings for supplying external air are provided between the axial outlet of the annular channel and the outlet of the rotary chamber. This eliminates the need for applying an additional suction power to maintain the functionality of the dispersion unit, which benefits neither the mobilization of the powder from the dispersing device nor the actual dispersing performance.
- the deflection of the particle stream and the directed outlet into the pharynx are realized according to the invention solely by geometric shapes.
- Fig. 1 shows a dispersing unit for a (not shown) powder inhaler with a mouthpiece 10, on the underside of an annular channel 12 is provided for supplying a particle flow.
- the particle flow is generally generated by suction on the mouthpiece, for example by providing in the inhaler a predetermined dose of active substance and carrier substance, which is then sucked into the annular channel 12 by suction at the mouthpiece.
- the annular channel 12 is circumferentially formed circumferentially and has an axial inlet 14 and an axial outlet 16, wherein both inlet 14 and outlet 16 extend over the entire circumference of the annular channel 12.
- a likewise annular deflection chamber 18 is provided, which has approximately the same radial extent as the annular channel 12 and in which the axially entering particle flow is deflected in a predominantly radial flow direction.
- the essentially radially directed particle flow at the outlet of the deflection chamber 18 is conducted into a rotation chamber 20, which has a circular peripheral wall 22 and an axial outlet 24.
- the outer diameter of the annular channel 12, the deflection chamber 18 and the rotation chamber 20 are substantially equal. Also, the inner diameter of the annular channel 12 and the inner diameter of the deflection chamber 18 correspond to each other. The inner diameter of the axial outlet 24 of the rotary chamber 20 is less than the inner diameter of the deflection chamber 18.
- a plurality of guide vanes 26 are provided in the deflection chamber 18 distributed over the circumference, which are oriented obliquely to the axial direction.
- Each of the vanes 26 extends over the entire cross section of the deflection chamber 18, wherein each vane is curved and the curvature decreases in the axial direction, i. at the inlet of the deflection chamber 18 is stronger than at the outlet.
- the guide vanes 26 In section (longitudinal section), have the profile of a wing with a curved skeleton line.
- the guide vanes have a rounded leading edge in the region of the inlet of the deflection chamber 18 and a less rounded trailing edge in the region of the outlet of the deflection chamber 18, so that the profile of the guide vanes 26 resembles an aircraft wing.
- the peripheral wall 22 of the rotary chamber 20 is circular cylindrical and connects directly to the outlet of the deflection chamber 18, wherein the axial extent of the deflection chamber 18 and the rotation chamber 20 is approximately equal.
- the rotation chamber 20 has an end wall 28, which forms a transition between the peripheral wall 22 and the centrally arranged axial outlet 24.
- the transition from the circular peripheral wall 22 is curved to the end wall 28 in the region of the corner.
- a discharge channel 30 connects, the peripheral wall 32 widens concave.
- the transition between the end wall 28 of the rotary chamber 20 and the peripheral wall 32 of the discharge channel 30 is sharp-edged and formed at an acute angle in the illustrated embodiment.
- the discharge channel 30 has in its output end portion a circular cylindrical portion 33 which extends to the end of the discharge channel 30 and causes an axial concentration of the discharged particle flow.
- the patient sucks on the mouthpiece 10, whereby a stream of particles in the direction of the illustrated arrows (axial direction) is passed through the mouthpiece, which has been previously provided by a non-illustrated powder inhaler in a desired dose.
- the sucked-in particle stream is first introduced through the inlet 14 into the annular channel 12 and passes through the annular, axial outlet 16 from the annular channel 12 in the annular deflection 18.
- the rotation chamber 20 rotates the Particle flow, wherein heavy particles in the region of the circular peripheral wall 22 rotate longer and lighter particles follow the air flow and move faster in the direction of discharge channel 30.
- the heavier particles circulating in the rotation chamber 20 initially release progressively smaller (active) particles during their circulation by contact with the peripheral wall 22 until these particles circulating in the rotation chamber 20 likewise follow the air flow and are then discharged.
- the dispersing unit described is made according to an advantageous embodiment of plastic.
- mouthpiece 12 annular channel 14 Inlet of the annular channel 16 Outlet of the ring channel 18 deflection 20 rotation chamber 22 circular peripheral wall 24 Outlet of the rotation chamber 26 vanes 27 commitment 28 bulkhead 30 discharge channel 32 peripheral wall 33 circular cylindrical area
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Nozzles (AREA)
- Medicinal Preparation (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Colloid Chemistry (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006007495A DE102006007495A1 (de) | 2006-02-17 | 2006-02-17 | Dispergiereinheit |
EP07702637.5A EP1962934B1 (fr) | 2006-02-17 | 2007-01-09 | Unite de dispersion |
Related Parent Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07702637.5 Division | 2007-01-09 | ||
EP07702637.5A Division-Into EP1962934B1 (fr) | 2006-02-17 | 2007-01-09 | Unite de dispersion |
EP07702637.5A Division EP1962934B1 (fr) | 2006-02-17 | 2007-01-09 | Unite de dispersion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2614849A1 true EP2614849A1 (fr) | 2013-07-17 |
EP2614849B1 EP2614849B1 (fr) | 2017-06-21 |
Family
ID=38255391
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13158374.2A Not-in-force EP2614849B1 (fr) | 2006-02-17 | 2007-01-09 | Unité de dispersion |
EP07702637.5A Active EP1962934B1 (fr) | 2006-02-17 | 2007-01-09 | Unite de dispersion |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07702637.5A Active EP1962934B1 (fr) | 2006-02-17 | 2007-01-09 | Unite de dispersion |
Country Status (21)
Country | Link |
---|---|
US (1) | US8807132B2 (fr) |
EP (2) | EP2614849B1 (fr) |
JP (2) | JP5360471B2 (fr) |
KR (1) | KR101359573B1 (fr) |
CN (2) | CN103157162B (fr) |
AR (1) | AR059332A1 (fr) |
AU (1) | AU2007218385B2 (fr) |
BR (1) | BRPI0708072A2 (fr) |
CA (2) | CA2872281C (fr) |
CL (1) | CL2007000429A1 (fr) |
DE (1) | DE102006007495A1 (fr) |
DK (1) | DK1962934T3 (fr) |
EA (1) | EA014837B1 (fr) |
HK (2) | HK1097999A2 (fr) |
MX (2) | MX341005B (fr) |
MY (1) | MY148154A (fr) |
NO (1) | NO337268B1 (fr) |
NZ (1) | NZ570204A (fr) |
UA (1) | UA95279C2 (fr) |
WO (1) | WO2007096023A1 (fr) |
ZA (1) | ZA200806544B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11446451B2 (en) | 2017-07-03 | 2022-09-20 | Inhaler Limited | Inhaler |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2534958A1 (fr) | 2007-12-14 | 2012-12-19 | AeroDesigns, Inc | Administration de produits alimentaires sous forme d'aérosols |
GR1009186B (el) | 2016-09-28 | 2018-01-09 | Κωνσταντινος Παυλου Ζαρογουλιδης | Συσκευη χορηγησης εισπνεομενων φαρμακων σε μορφη ξηρας σκονης με αποσπωμενες κεφαλες για τη ρυθμιση της αντιστασης |
CN107715264B (zh) * | 2017-10-12 | 2021-01-29 | 上海新黄河制药有限公司 | 一种粉雾剂装置制剂粉末团聚物的分散/解聚装置 |
CN107737393B (zh) * | 2017-10-12 | 2020-08-28 | 上海新黄河制药有限公司 | 一种用于粉雾剂吸入装置的制剂雾化流道 |
WO2020209798A1 (fr) * | 2019-04-12 | 2020-10-15 | National University Of Singapore | Système de distribution d'aérosol médical inhalable |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999039761A1 (fr) * | 1998-02-06 | 1999-08-12 | Unisia Jecs Corporation | Dispositif d'inhalation de medicaments |
US5954047A (en) * | 1997-10-17 | 1999-09-21 | Systemic Pulmonary Development, Ltd. | Methods and apparatus for delivering aerosolized medication |
EP1068874A1 (fr) * | 1999-01-27 | 2001-01-17 | Unisia Jecs Corporation | Distributeur de medicament du type inhalateur |
US20040107963A1 (en) * | 2002-12-02 | 2004-06-10 | The Governors Of The University Of Alberta | Device and method for deagglomeration of powder for inhalation |
Family Cites Families (34)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1295081A (en) | 1969-01-08 | 1972-11-01 | Fisons Pharmaceuticals Ltd | A method and device for dispensing particulate medicament material from a container |
US3838686A (en) * | 1971-10-14 | 1974-10-01 | G Szekely | Aerosol apparatus for inhalation therapy |
US3795244A (en) * | 1973-02-02 | 1974-03-05 | Syntex Corp | Inhalation device |
US3938686A (en) * | 1974-11-18 | 1976-02-17 | Milligan Robert T | Paint container |
SE453566B (sv) | 1986-03-07 | 1988-02-15 | Draco Ab | Anordning vid pulverinhalatorer |
DE407028T1 (de) * | 1989-05-31 | 1994-03-17 | Fisons Plc | Medikament und Inhalationsvorrichtung dafür. |
JP3230056B2 (ja) * | 1991-07-02 | 2001-11-19 | インヘイル・インコーポレーテッド | 薬剤のエーロゾル化服用量を形成する装置 |
DE4208880A1 (de) * | 1992-03-19 | 1993-09-23 | Boehringer Ingelheim Kg | Separator fuer pulverinhalatoren |
JPH08103499A (ja) | 1994-10-04 | 1996-04-23 | Unisia Jecs Corp | 吸入式投薬器 |
SE9404439D0 (sv) * | 1994-12-21 | 1994-12-21 | Astra Ab | Inhalation device |
US5474059A (en) * | 1995-04-08 | 1995-12-12 | Cooper; Guy F. | Aerosol dispensing apparatus for dispensing a medicated vapor into the lungs of a patient |
DE19522415C2 (de) | 1995-06-21 | 2003-12-04 | Sofotec Gmbh & Co Kg | Arzneimittelpulverpatrone mit integrierter Dosiereinrichtung und Pulverinhalator mit Mitteln zum Betätigen der Dosiereinrichtung der Arzneimittelpulverpatrone |
DE19522416C2 (de) * | 1995-06-21 | 2003-11-20 | Sofotec Gmbh & Co Kg | Vorrichtung zum Dispergieren von Pulver in einem Luftstrom zur Verwendung mit Pulver-Inhalatoren |
GB9513218D0 (en) * | 1995-06-29 | 1995-09-06 | Fisons Plc | Inhalation device and method |
JP3317823B2 (ja) * | 1995-08-11 | 2002-08-26 | 株式会社ユニシアジェックス | 投薬器 |
SE9503344D0 (sv) * | 1995-09-27 | 1995-09-27 | Astra Ab | Inhalation device |
US5875774A (en) * | 1996-01-05 | 1999-03-02 | Sunrise Medical Hhg Inc. | Nebulizer |
GB9626263D0 (en) * | 1996-12-18 | 1997-02-05 | Innovata Biomed Ltd | Powder inhaler |
SE9700937D0 (sv) * | 1997-03-14 | 1997-03-14 | Astra Ab | Powder inhaler I |
GB9720283D0 (en) | 1997-09-25 | 1997-11-26 | Norton Healthcare Ltd | Inhaler spacer |
WO1999037461A1 (fr) | 1998-01-21 | 1999-07-29 | Protool Ag | Manchon mobile distributeur de la matiere plastique fondue permettant de compenser la dilatation thermique entre le canal de carotte chauffe et l'entree du moule |
DE19825434C2 (de) * | 1998-01-30 | 2002-03-28 | Ig Spruehtechnik Gmbh | Inhalationsgerät für pulverförmige Medikamente |
JP3739955B2 (ja) * | 1999-01-11 | 2006-01-25 | 株式会社日立製作所 | 吸入式投薬器 |
US6363932B1 (en) | 2000-07-06 | 2002-04-02 | Clinical Technologies, Inc. | Aerosol enhancement device |
FI20002363A0 (fi) | 2000-10-27 | 2000-10-27 | Orion Yhtymae Oyj | Jauheinhalaattori |
US6482245B2 (en) * | 2001-03-30 | 2002-11-19 | Armstrong International | Centrifugal particulate matter gas separator |
US6681768B2 (en) * | 2001-06-22 | 2004-01-27 | Sofotec Gmbh & Co. Kg | Powder formulation disintegrating system and method for dry powder inhalers |
DE10129703A1 (de) * | 2001-06-22 | 2003-01-02 | Sofotec Gmbh & Co Kg | Zerstäubungssystem für eine Pulvermischung und Verfahren für Trockenpulverinhalatoren |
GB0209494D0 (en) * | 2002-04-25 | 2002-06-05 | Optinose As | Nasal devices |
AU2003276447A1 (en) | 2002-11-04 | 2004-06-07 | Cambridge Consultants Limited | Inhalers |
US7107987B2 (en) * | 2004-02-10 | 2006-09-19 | Cfd Research Corporation | Spacer for delivery of medications from an inhaler to children and breathing impaired patients |
WO2006031775A2 (fr) * | 2004-09-13 | 2006-03-23 | Oriel Therapeutics, Inc. | Inhalateurs a poudre seche d'inhibition d'agregat, dispositifs et procedes associes |
CN101252964A (zh) * | 2005-05-12 | 2008-08-27 | 科斯生命科学公司 | 用于定剂量的吸入器的剂量计数器 |
DE102009030185A1 (de) * | 2009-06-24 | 2010-12-30 | Joachim Kern | Turboinhalator |
-
2006
- 2006-02-17 DE DE102006007495A patent/DE102006007495A1/de not_active Withdrawn
-
2007
- 2007-01-09 MX MX2012000818A patent/MX341005B/es unknown
- 2007-01-09 CN CN201310053027.2A patent/CN103157162B/zh not_active Expired - Fee Related
- 2007-01-09 JP JP2008554616A patent/JP5360471B2/ja not_active Expired - Fee Related
- 2007-01-09 CA CA2872281A patent/CA2872281C/fr not_active Expired - Fee Related
- 2007-01-09 EA EA200870271A patent/EA014837B1/ru not_active IP Right Cessation
- 2007-01-09 NZ NZ570204A patent/NZ570204A/en not_active IP Right Cessation
- 2007-01-09 MX MX2008010443A patent/MX2008010443A/es active IP Right Grant
- 2007-01-09 US US12/223,994 patent/US8807132B2/en not_active Expired - Fee Related
- 2007-01-09 EP EP13158374.2A patent/EP2614849B1/fr not_active Not-in-force
- 2007-01-09 KR KR1020087022285A patent/KR101359573B1/ko not_active IP Right Cessation
- 2007-01-09 MY MYPI20083092A patent/MY148154A/en unknown
- 2007-01-09 AU AU2007218385A patent/AU2007218385B2/en not_active Ceased
- 2007-01-09 DK DK07702637.5T patent/DK1962934T3/en active
- 2007-01-09 WO PCT/EP2007/000129 patent/WO2007096023A1/fr active Application Filing
- 2007-01-09 BR BRPI0708072-7A patent/BRPI0708072A2/pt not_active Application Discontinuation
- 2007-01-09 EP EP07702637.5A patent/EP1962934B1/fr active Active
- 2007-01-09 CN CN2007800055712A patent/CN101384290B/zh not_active Expired - Fee Related
- 2007-01-09 CA CA2641557A patent/CA2641557C/fr not_active Expired - Fee Related
- 2007-02-01 HK HK07101227A patent/HK1097999A2/xx not_active IP Right Cessation
- 2007-02-06 AR ARP070100484A patent/AR059332A1/es active IP Right Grant
- 2007-02-15 CL CL2007000429A patent/CL2007000429A1/es unknown
- 2007-09-01 UA UAA200811232A patent/UA95279C2/uk unknown
-
2008
- 2008-07-28 ZA ZA200806544A patent/ZA200806544B/xx unknown
- 2008-08-04 NO NO20083381A patent/NO337268B1/no not_active IP Right Cessation
-
2009
- 2009-03-03 HK HK09101972.1A patent/HK1121417A1/xx not_active IP Right Cessation
-
2012
- 2012-08-24 JP JP2012184725A patent/JP2012232183A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5954047A (en) * | 1997-10-17 | 1999-09-21 | Systemic Pulmonary Development, Ltd. | Methods and apparatus for delivering aerosolized medication |
WO1999039761A1 (fr) * | 1998-02-06 | 1999-08-12 | Unisia Jecs Corporation | Dispositif d'inhalation de medicaments |
EP1068874A1 (fr) * | 1999-01-27 | 2001-01-17 | Unisia Jecs Corporation | Distributeur de medicament du type inhalateur |
US20040107963A1 (en) * | 2002-12-02 | 2004-06-10 | The Governors Of The University Of Alberta | Device and method for deagglomeration of powder for inhalation |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11446451B2 (en) | 2017-07-03 | 2022-09-20 | Inhaler Limited | Inhaler |
US11980711B2 (en) | 2017-07-03 | 2024-05-14 | Inhaler Limited | Inhaler |
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